CN1287101C - One-way clutch and one-way clutch assembly - Google Patents
One-way clutch and one-way clutch assembly Download PDFInfo
- Publication number
- CN1287101C CN1287101C CN02131503.5A CN02131503A CN1287101C CN 1287101 C CN1287101 C CN 1287101C CN 02131503 A CN02131503 A CN 02131503A CN 1287101 C CN1287101 C CN 1287101C
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- CN
- China
- Prior art keywords
- outer shroud
- inner member
- spring
- overrunning clutch
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Braking Arrangements (AREA)
Abstract
A one-way clutch is provided which has improved compactness. The one-way clutch comprises an inner member, an outer ring relatively rotatably mounted on the inner member, a rolling element mounted between the inner member and the outer ring, and a spring member for biasing the rolling element in one direction. A rolling element receiving portion having a predetermined wedge angle and a spring receiving portion communicating with the rolling element receiving portion are provided between the inner member and the outer ring. The spring member is received in the spring receiving portion, and the rolling element is received in the rolling element receiving portion and biased by the spring member toward the narrow side of the rolling element receiving portion. The inner member has a semi-columnar portion, which forms the rolling element receiving portion and the spring receiving portion.
Description
Technical field
The present invention relates to a kind of overrunning clutch and one-way clutch assembly, particularly improved the overrunning clutch and the one-way clutch assembly of compactedness.
Background technique
The overrunning clutch that uses in the drive unit as power equipment or office equipment has illustrated a kind of known overrunning clutch (Japanese patent application 9-89011) among Figure 15.It has roller receiver portion 24, and roller receiver portion 24 is formed on the internal surface of outer shroud 22, and outer shroud 22 is assemblied on the axle 21.All be formed with a camming surface 25 in the bottom of each roller receiver portion, so that between camming surface 25 and axle 21, form the predetermined angle of wedge.Wide sidepiece at each roller receiver portion 24 is formed with spring-housing groove 26.
Overrunning clutch be be arranged on revolving part for example the outer ring sleeve 29 in the axle sleeve part of gear use together.When outer shroud 22 when axle 21 is along certain orientation (among Fig. 5 shown in the arrow A) rotation relatively, roller 27 will interlock enter a side narrower in the roller receiver portion 24 and locked, and torque is just along a torque limiter and a transmission of one like this.When sense of rotation is opposite, because a side shifting of roller 27 broad in roller receiver portion 24, so roller 27 freedom, overrunning clutch idle running like this, torque is no longer transmitted.
In the many devices (the paper feeding roller drive part of printer/duplicating machine, personal computer, portable data assistance etc.) that use this overrunning clutch,, therefore just need the overrunning clutch compactness because device main body becomes compact.But in conventional construction, because its external diameter must be greater than the diameter of axle, so its compactedness just is restricted.
One object of the present invention just provides a kind of overrunning clutch that compactedness requires that meets.
Summary of the invention
According to the present invention, a kind of overrunning clutch is provided, it comprises inner member, can be arranged on the outer shroud on the inner member with the relative rotation, be arranged on the roll piece between inner member and the outer shroud, spring part along a direction bias voltage roll piece, roll piece receiver portion with predetermined angle of wedge, and communicate with the roll piece receiver portion and be arranged on spring housing portion between inner member and the outer shroud, spring part is arranged in spring housing portion, roll piece is arranged in the roll piece receiver portion and is pressed to the narrower lateral deviation of roll piece receiver portion by spring part, wherein inner member comprises half-cylindrical part, and the roll piece receiver portion is become with the internal surface of described outer ring by the half round post part with spring housing portion.
An end of inner member was connected on the axle when overrunning clutch used.When with the relative outer shroud of axle all-in-one-piece inner member the time along the rotation of direction, owing to the interlock of roll piece locks, so just can transmitting torque, as described in the prior art.When it rotates in the opposite direction, the free and idle running of roll piece, the transmission of torque is ended like this.Because roll piece receiver portion and spring housing portion are arranged on excision (cut-out) the part place in the inner member, so the size of following conventional apparatus to compare overrunning clutch can significantly reduce.
The quantity of roll piece receiver portion and spring housing portion (equating with the quantity of roll piece receiver portion) can be determined according to load capacity.One cover sometimes only is set.
Semi-cylindrical element forms by camming surface, so that for the roll piece receiver portion forms the angle of wedge, also has roller stopper rib and the spring seat that is used for spring part.Camming surface is to be formed by the removal surface that is parallel to the inner member diameter line.Spring seat is oppositely arranged with respect to roller stopper rib and camming surface.
Use this structure, camming surface can form at an easy rate.And, by the roller stopper rib is set, can stop the roll piece retraction to surpass prespecified range.This has just prevented that spring part from being knocked down by roll piece in the idle running process, and has prevented that roll piece is locked in the idle running process.
According to the present invention, inner member be provided with an attachment portion that is connected with axle, the radial support part that is used for outer shroud and diameter greater than radial support partly and with a flange that end face is adjacent of outer shroud.The function of radial bearing is to make the smoothly rotation together under the concentric state of maintenance of inner member and outer shroud.Flange stops inner member to come out.
By ring sleeve outside on outer shroud, being provided with, a kind of overrunning clutch parts are provided, it comprises the combination of overrunning clutch and outer ring sleeve.And, by axle and the link that is arranged on the inner member are coupled together, provide a kind of overrunning clutch parts that comprise the combination of overrunning clutch and axle.
In another embodiment of the present invention, semi-cylindrical element is formed with a plane, and the camming surface that is used for the roll piece receiver portion is formed on this plane with the spring seat that is used for spring housing portion.Use this structure, internal element shape is simple, is convenient to make.
In another embodiment, be provided with stiffening plate in the plane, camming surface and spring seat are arranged on this plane.In this embodiment, the camming surface surface pressure that can in locking process, more safely bear roll piece and applied.The torque of allowing like this, can be arranged to very high numerical value.And inner member can be made by resin-molded or sintering.
And spring part can have restricted part and be used for limiting the retraction of roll piece in the idle running process.This has just prevented the locking of roll piece in the idle running process.
And inner member can comprise the shaft element and the cover element of one, can form the two ends that radial bearing is used for supporting outer shroud on the shaft element of one and cover element.
Description of drawings
Other characteristics of the present invention and purpose can become clearer by description with reference to the accompanying drawings, wherein:
Figure 1A is the partial section of the embodiment of the invention;
Figure 1B is the amplification sectional view of b-b line in Figure 1A;
Fig. 2 A is same embodiment's a perspective view;
Fig. 2 B is same embodiment's a perspective exploded view;
Fig. 3 A is the schematic representation of same embodiment's the angle of wedge;
Fig. 3 B is the schematic representation of same embodiment's working procedure;
Fig. 4 A is an improved embodiment's a perspective exploded view;
Fig. 4 B is another improved embodiment's a perspective exploded view;
Fig. 5 is first embodiment's a sectional view;
Fig. 6 is same embodiment's a perspective exploded view;
Fig. 7 is the sectional view of X-X line in Fig. 5;
Fig. 8 A is an improved embodiment's a sectional view;
Fig. 8 B is another improved embodiment's a sectional view;
Fig. 9 A is another improved embodiment's a sectional view;
Fig. 9 B is another improved embodiment's a sectional view;
Figure 10 is second embodiment's a sectional view;
Figure 11 is same embodiment's a perspective exploded view;
Figure 12 is the sectional view of Y-Y line in Figure 10;
Figure 13 A is an improved embodiment's a sectional view;
Figure 13 B is another improved embodiment's a sectional view;
Figure 14 A is another improved embodiment's a sectional view;
Figure 14 B is another improved embodiment's a sectional view;
Figure 15 is the sectional view of traditional overrunning clutch;
Embodiment
[first embodiment]
Introduce embodiments of the invention below with reference to accompanying drawings.As illustrated in fig. 1 and 2, the overrunning clutch shown in the figure comprises inner member 1, outer shroud 2, roller 3 and spring part 4, and these parts fit together with axle 5 and outer ring sleeve 6.
Shown in Figure 1B and 2B, inner member 1 has half-cylindrical part 7, and this part is by at special position a columniform part being cut away formation along the direction parallel with diameter.End in half-cylindrical part 7 is formed with radial support part 8, and it comprises cylindrical portions may.On the exterior edge face of radial support part 8, be formed with the bigger flange of diameter 9.Half-cylindrical part 7 is formed with flat camming surface 11 in a side of vertical roller stopper rib 12, is formed with the spring seat 13 that has concave face at opposite side.Ratio between the width b of the width a of camming surface 11 and spring seat 13 approximately is 2 to 1 (Figure 1B) in the present embodiment.
For roller receiver portion 14, the side that the internal surface of camming surface 11 and outer shroud 2 contacts with roller 3 is narrower, and a side broad of roller stopper rib 12.Roller 3 is contained in the roller receiver portion 14.By camming surface 11 and the formed angle [alpha] of tangent line at the point of contact place of outer shroud 2 internal surfaces and roller 3 (Fig. 3 A) is the angle of wedge.Locking angle is preferably spent between 10 degree 0.
The spring housing portion 14 ' that communicates with roller receiver portion 14 is formed by the internal surface of spring seat 13 and outer shroud 2.The spring part 4 that is contained in wherein is bent to form leaf spring.By curved section is installed in the spring seat 13, and its free end is pressed on the roller 3, roller just is biased to roller receiver portion 14.
The diameter of axle 5 and the equal diameters (Figure 1A) of outer shroud 2.When length according to use changing, in the present embodiment, be provided with attachment portion 17 at an end of axle 5.Shown in Fig. 2 B, attachment portion 17 comprises half-cylindrical part 18, and its cross section is cut circular and have the arcuate surfaces that can be coupled in the outer shroud 2, and has the cut-out 19 of the arc identical with half-cylindrical part 18.The camming surface 11, roller stopper rib 12 and spring seat 13 complementations that form on the sectional shape of half-cylindrical part 18 and the half-cylindrical part 7, therefore, half-cylindrical 18 parts and half-cylindrical part 7 form column part together, and its formation fits into the radial bearing in outer shroud 2 internal surfaces.
And, the sectional shape complementation of the sectional shape of cut-out 19 and half-cylindrical part 7, the terminal part of inner member 1 half-cylindrical part 7 can be pressed in the cut-out 19 like this.
By the end of half-cylindrical part 7 and the engagement of half-cylindrical part 18, when roller 3 and the axial motion of spring part 3 in outer shroud 2 were confined, an end face of outer shroud 2 was closed.
The one-way clutch assembly of present embodiment constitutes as mentioned above.If axle 5 causes the narrower sideway swivel (see the arrow A of Figure 1B) of outer shroud 2 relative interior elements 1 towards roller receiver portion 14 with outer ring sleeve 6 relative rotations, roller 3 will move along same direction so, and interlock also locks thus.Therefore torque just can be from axle 5 to outer shroud 6 transmission or along opposite direction transmission.
If sense of rotation is (sees the arrow B of Fig. 3 B) opposite with above-mentioned direction, roller 3 will be to direction (ruling to solid line from single-point in Fig. 3 B) motion of broad, and roller 3 will be free like this, so the transmission of torque disconnects.In this case, the retraction of roller 3 infinities is stoped by roller stopper rib 12, and spring part 4 just can prevent to be knocked down.
Though use roller 3 as roll piece in the present embodiment, also can adopt spheroid to replace roller.
[second embodiment]
As illustrated in Figures 5 and 6, second embodiment's overrunning clutch comprises inner member 31, outer shroud 32, roller 33 and spring part 34.
When the integral shaft element 31a of inner member 31 was installed in the outer shroud 32, the radial bearing 49a that is used for supporting outer shroud 32 1 ends formed (Fig. 5) by the outer surface of shank 36.In the space that the plane 37 of the outer surface of outer shroud 32 and integral shaft element 31a is surrounded, accommodate roller 33 and spring part 34.And, to go out in order to stop them, the half-cylindrical projection 46 of cover element 31b is installed in the outer shroud 32.The outer surface of half-cylindrical projection 46 and half-cylindrical part 35 by such installation has formed the radial bearing 49b that is used for supporting outer shroud 32 the other ends.
As mentioned above, integral shaft element 31a is installed in the outer shroud 32, and roller 33 and spring part 34 are installed in the plane 37 and the space between the internal surface of outer shroud 32, and cover element 31b has been installed.Like this, integral shaft element 31a and cover element 31b are made of discrete item.
But also can adopt other assembly method, wherein will after part 31a and 31b assemble in advance, roller 33 and spring part 33 be installed, carefully this assembly is installed in the outer shroud 32 then, like this can be so that spring part 34 can not come out.If make in this way, can make part 31a and 31b with discrete component.
In Fig. 5, use as axle to the part of the shank 36 of outer process from outer shroud 32.Its length is determined by function.Because the part of using as axle is an one, so be called " integral shaft element 31a ".But as the part that axle uses can be part separately, and the part that comprises radial bearing 49a and half-cylindrical part 35 can be set, and this part can be connected on the axle by suitable mode.
The diameter of roller 33 is slightly smaller than the internal surface of outer shroud 32 and the extreme length in the space that plane 37 constitutes of half round post 35.When roller 33 is contained in this space, will form irregular space (Fig. 7) in the both sides of roller 33.One of them space and constituted roller receiver portion 51 by the part that roller 33 occupies, remaining part has constituted spring housing portion 51 '.The part that constitutes the plane 37 of roller receiver portion 21 is used as camming surface 43.The internal surface of camming surface 43 and outer shroud 32 has constituted a predetermined locking angle.
Second embodiment's one-way clutch assembly as above forms.When outer shroud 32 along direction relative interior element 31 rotation of arrow A (Fig. 7) time, roller 31 will move to roller receiver portion 51 narrower sides (in Fig. 7 from the single-point scribing position to solid line position).As a result, the such roller locking of interlock just takes place.Therefore torque just can be transmitted.If the direction of rotation is with above-mentioned opposite, roller 33 will move to a side of broad, lockout, like this, and roller 33 idle running, transmission of torque is ended.
When roller 33 moves to broad one side, roller 33 presses spring part 34 and the represented scope in β angle that bounces back, and has surpassed the wideest part simultaneously.When the numerical value of retraction has surpassed predetermined numerical value, spring housing portion 51 ' the one side formation again of the locking angle on opposite direction, so roller 33 just can lock in the idle running process.
If the elastic force of spring part is provided with enough greatly, lock in the roller 33 idle running processes preventing, spring part can not be realized the function that it is intrinsic so, applies the working stability that suitable biasing force obtains roller 33.And, also can not between camming surface 43 and spring seat 44, provide a rib to limit the retraction of roller 33.But because the uniformity on plane 37 is impaired, the simplification of manufacturing has also reduced.
Therefore, according to the present invention, in order to prevent to lock in the roller 33 idle running processes, and the biasing force of influence on roller not, a restricted part 53 is set on spring part 34 prevents the level that retroeflection is certain excessively.(seeing that Fig. 8 A is to 8B).
The free end of standing part 52 that is bent to the spring part 34 of U-shaped in the structure shown in Fig. 8 A curves inwardly, so as with opposite side in abutting connection with being construed as limiting part 53, restraining spring spare 34 is crooked backward thus.In the structure shown in Fig. 8 B, axle fits in the U-shaped curved section of spring part 34 so that form restricted part 53, and restraining spring spare 34 is crooked backward thus.
The retraction of roller 33 is to be limited by the limiting component that the free end by flexural spring spare 34 forms in the structure shown in Fig. 9 A, therefore just makes the distance between roller 33 and outer shroud 32 internal surfaces narrow down.Structure medi-spring spare 34 shown in Fig. 9 B is bent to annular and is construed as limiting part 53, and it is between the internal surface of roller 33 and outer shroud 32.
By limiting component 53 is set, can make the common surface that constitutes camming surface 43 and spring seat 44 become plane 37, and prevent that roller 33 from bouncing back in the idle running process that goes beyond the limit, prevent locking thus.
[the 3rd embodiment]
Below, the 3rd embodiment's overrunning clutch has been shown among Figure 10-12.In the 3rd embodiment's overrunning clutch, the metal reinforcing plates 54 with certain degree of hardness is provided with on the plane 37, and camming surface 43 and spring seat 44 are formed on the surface of stiffening plate 54.Stiffening plate 54 is made by the sheet metal such as iron plate, and is bonded on the plane 37.
By stiffening plate 54 is set, the very low material of hardness is made even the integral shaft element 31a of inner member 31 is by being easy to mold pressing, and as resin or sintered alloy, it also can bear the high surface pressure that roller 33 is applied.Because other structure is identical with second embodiment with operation, thus identical reference character used for identical part, and omitted description of them.
Overrunning clutch and one-way clutch assembly according to first embodiment have following advantage:
(1) because it comprises inner member, outer shroud, at least one roll piece and spring part, the negligible amounts of element, cost reduces, and assembling is easily.
(2) because axle 5 does not pass overrunning clutch, and roller receiver portion and spring housing portion are arranged in the cut-out of inner member, and an end of inner member is connected on the axle 5, can make one-way clutch assembly compacter thus.
(3) if the external diameter of outer shroud is identical with the external diameter of axle 5, the one-way clutch assembly that has overrunning clutch just can be integral with axle.
And have following advantage according to second embodiment's overrunning clutch and one-way clutch assembly:
(1) because being used for the bearing support that the camming surface and being used for of supporting roller spare holds bearing member is formed on the common plane, so inner member is easy to make.And, because the plane does not have the restriction of direction, so inner member can jointly be used to have the overrunning clutch of variable locking direction.
(2) by stiffening plate is set in the plane, can transmit higher torque, inner member also can be made by mold pressing resin or sintered alloy.
(3), can stop in the idle running process locking and can not influence bias voltage function roll piece by restricted part is set on spring part.
Claims (10)
1. overrunning clutch comprises:
Inner member;
Can be installed in the outer shroud on the inner member with the relative rotation;
Be installed in the roll piece between inner member and the outer shroud;
Spring part along a direction bias voltage roll piece;
Roll piece receiver portion with predetermined angle of wedge; With
Be connected with the roll piece receiver portion and be arranged on spring housing portion between inner member and the outer shroud, described spring part is contained in the described spring housing portion, described roll piece is contained in the roll piece receiver portion and by described spring part and presses towards a narrower lateral deviation of described roll piece receiver portion
Wherein said inner member comprises half-cylindrical part, and described roll piece receiver portion and described spring housing portion are made of described internal surface partly half-cylindrical and described outer shroud.
2. overrunning clutch as claimed in claim 1, wherein said roll piece receiver portion and described spring housing portion are arranged in the space.
3. overrunning clutch as claimed in claim 2, wherein said half-cylindrical part is formed with the camming surface that is used to described roll piece receiver portion to form the angle of wedge, roller stopper rib and the spring seat that is used for spring part, described camming surface is to be formed by the removal surface that is parallel to the inner member diameter line, and described spring seat is oppositely arranged with respect to roller stopper rib and camming surface.
4. overrunning clutch as claimed in claim 1, wherein said inner member comprises:
Axle, this axle comprises described half-cylindrical part and cylindrical part, this cylindrical part one is connected to an end of described half-cylindrical part and has radially-outer surface, and described axle is inserted in the described outer shroud and the described radially-outer surface of described cylindrical part supports the inner radial surface of described outer shroud rotationally at an end of described outer shroud;
Flange, described flange has from the other end of described outer shroud and is inserted in small diameter portion in the described outer shroud, rotationally the inner radial surface of described outer shroud is supported on the radially-outer surface of described small diameter portion of described flange at the other end of described outer shroud thus.
5. overrunning clutch as claimed in claim 1, wherein said half-cylindrical part is formed with the plane, and the camming surface that is used to the roller receiver portion to form the angle of wedge is formed on described plane with the spring seat that is used for spring housing portion.
6. overrunning clutch as claimed in claim 5, wherein described plane is provided with stiffening plate, and described camming surface and described spring seat are arranged on the described stiffening plate.
7. overrunning clutch as claimed in claim 5, wherein said spring part is provided with restricted part, is used for limiting the retraction of described roll piece in the idle running process.
8. as each described overrunning clutch among the claim 5-7, wherein said inner member comprises integral shaft element and cover element, is formed with radial bearing on described integral shaft element and described cover element, is used to support the two ends of described outer shroud.
9. an one-way clutch apparatus wherein is provided with ring sleeve outside by assembling or whole formation on the described outer shroud of each described overrunning clutch in above-mentioned requirements 1-4.
10. one-way clutch apparatus as claimed in claim 9, wherein an axle is connected on the attachment portion of described overrunning clutch inner member.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001232189 | 2001-07-31 | ||
| JP2001232189A JP4321981B2 (en) | 2001-07-31 | 2001-07-31 | One-way clutch |
| JP2001283484 | 2001-09-18 | ||
| JP2001283484A JP4321982B2 (en) | 2001-09-18 | 2001-09-18 | One-way clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405464A CN1405464A (en) | 2003-03-26 |
| CN1287101C true CN1287101C (en) | 2006-11-29 |
Family
ID=26619690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02131503.5A Expired - Fee Related CN1287101C (en) | 2001-07-31 | 2002-07-31 | One-way clutch and one-way clutch assembly |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6793056B2 (en) |
| CN (1) | CN1287101C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005291492A (en) * | 2004-03-09 | 2005-10-20 | Ntn Corp | One-way clutch |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2019702A (en) * | 1933-10-18 | 1935-11-05 | Ditto Inc | Duplicating machine |
| US1985406A (en) * | 1934-01-04 | 1934-12-25 | Nathan B Galkin | Intermittent driving mechanism |
| US2350627A (en) * | 1941-12-24 | 1944-06-06 | Bronislaus T Malachowski | Clutch mechanism |
| US2505794A (en) * | 1945-02-15 | 1950-05-02 | Wintercorn Andrew F | Clutch for lawn mower reels |
| US2633951A (en) * | 1950-10-03 | 1953-04-07 | High Prec Inc | Roller type overrunning clutch |
| US2664183A (en) * | 1951-08-22 | 1953-12-29 | Crompton & Knowles Loom Works | One-way clutch |
| US2769515A (en) * | 1953-02-18 | 1956-11-06 | Mathews Conveyer Co | Controlled gravity conveyer |
| US2712246A (en) * | 1953-09-16 | 1955-07-05 | Ohio Gear Company | Gear reducer and driving-clutch arrangement |
| US3064776A (en) * | 1960-07-08 | 1962-11-20 | Borg Warner | One-way clutch |
| US3064777A (en) * | 1960-09-06 | 1962-11-20 | Borg Warner | One-way clutch |
| US3606187A (en) * | 1970-04-17 | 1971-09-20 | Kenneth H Hahn | Clutch for tightening winding tube on windup shaft |
| JPH0765632B2 (en) * | 1986-01-31 | 1995-07-19 | 中部ベアリング株式会社 | One way clutch |
| JPH02190628A (en) * | 1989-01-18 | 1990-07-26 | Daihatsu Motor Co Ltd | Clutch and motor-driven power steering device |
| JP4240169B2 (en) * | 1999-03-29 | 2009-03-18 | 株式会社ジェイテクト | One-way clutch and pulley with one-way clutch |
-
2002
- 2002-07-30 US US10/207,180 patent/US6793056B2/en not_active Expired - Lifetime
- 2002-07-31 CN CN02131503.5A patent/CN1287101C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6793056B2 (en) | 2004-09-21 |
| CN1405464A (en) | 2003-03-26 |
| US20030024785A1 (en) | 2003-02-06 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20180731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |